SELECT substr(SYS_CONNECT_BY_PATH(name, '>'),2) FROM rinceretbtree t where t.code='62010300500301' START WITH code = '62' CONNECT BY PARENT = PRIOR code;
将聚类结果按大小排序,并取出最大的4个结果 import timeimport open3d as o3d;import numpy as np;import matplotlib.pyplot as plt#坐标mesh_coord_frame = o3d.geometry.TriangleMesh.create_coordinate_frame(size=355, origin=[